there's a strong military culture in the united states. having said that, the argument you hear most often and that most people often believe, at least those who have guns, is that guns are a symbol of freedom. those are the people -- and believe me, there are lots of them -- who say that any attempt on the government to manage their lives is an assault on freedom. usually people who think that do not really question the argument, although it is obviously not a sound argument. the simplest way -- the simplest way of explaining this is that the freedom of some to possess these military weapons really restricts the freedom of many. just ask those parents who are scared to send their kids to school now. >> thanks very much for joining us in washington. >> lance armstrong is reported to have admitted for the first time to using performance- enhancing drugs during his cycling career. >> for years, he denied allegations that he had due to his way to 7 tour de france victories, but last year, he was stripped of all those titles. he has recorded a